PDF
Got home tonight to find contract, so although Royal Mail might be slow, they get stuff here eventually!
Books for Stage 3: I used a similar thing to prepare (also January Stage 3) - it was part of the 'brilliant' series - something like brilliant answers to interview questions. About 50% of my interview was also situational questions, but these were well covered in the book (although the context is different for everyone, the way you approach the question and structure your answer should be the same).
Every little helps!